# NodeJS
You can import the MetaMask SDK into your nodeJS application to enable users to easily connect with their MetaMask Mobile wallet.
The SDK will render a QR code on the console which users can scan with their MetaMask Mobile app and now you can use all the ethereum methods available right from your nodeJS app!
# 1. Install a MetaMask Mobile version compatible with the SDK
In order to test the MetaMask SDK, developers need access to a MetaMask Mobile build that is compatible with the SDK. Please install MetaMask Mobile v5.8.1 or above.
# 2. Install the SDK
yarn add @metamask/sdk
or
npm i @metamask/sdk
# 3. Import the SDK
import MetaMaskSDK from '@metamask/sdk';
# 4. Instantiate the SDK
For all Javascript-based apps, instantiate the SDK like this:
const MMSDK = new MetaMaskSDK(options);
const ethereum = MMSDK.getProvider(); // You can also access via window.ethereum
For a list of possible options check here
# 5. Use the SDK
ethereum.request({ method: 'eth_requestAccounts', params: [] });
TIP
You should always call eth_requestAccounts first--that is what makes the SDK render the QR code on the console!
For other possible methods, check the Ethereum Provider API